IN-FLIGHT WI-FI REMAINS AN EXPENSIVE HURDLE FOR AIRLINES

Technology couldn’t be more pervasive. It is always at our fingertips, meeting every need at every moment, providing constant communication. Right?

Judging by how quickly people fire up their phones after the plane lands, not quite.

One of the last significant hurdles for wireless communication is the airplane. Though Wi-Fi is increasingly available on domestic flights, it remains expensive and relatively little-used, according to most analyses. On international flights, where it can be argued that it is most needed, Wi-Fi is a rarity.

Australian airline Qantas inched the world closer to international in-flight Wi-Fi in March by launching an eight-week trial with the service on flights between Australia and Los Angeles, allowing passengers in first and business classes to access the Internet on laptops, phones and tablets. They join airlines that include Lufthansa, and, later this year, United.

This is revolutionary in 2012? For airplanes crossing oceans, yes.

Michael Planey, an airline industry consultant who tracks in-flight technologies, said there are several reasons for the slow move to Wi-Fi on international flights. Most of it, predictably, comes down to money.

Most Wi-Fi signals on domestic flights are provided by a series of ground towers. Qantas’ experiment, like all flights over water, uses satellite connections. The satellite connections are far more expensive propositions for airlines. That cost is increased by what appears to be moderate user interest at current pricing levels.

“Airlines have not been able to find a business model they like that doesn’t cost them money to provide the service,” Planey said. “And people are making do without it.”

Planey isn’t sure that in-flight Wi-Fi has demonstrated itself as a product worth buying. Sure, there’s enough bandwidth to send emails, texts and tweak the Facebook and Twitter accounts. But when it comes to streaming video or downloading music — the things we now take for granted while waiting for the bus — the execution isn’t always as clean at 38,000 feet.

His idea: Airlines should invest in the infrastructure, use the Wi-Fi for its own purposes, then give a small amount free to passengers, whose expectations will drop — because it’s free — to the point that not being able to stream YouTube videos will barely matter. They’ll just be glad to update their Facebook status.

“Once people start paying for it,” he said, “they expect a premium service.”

One day Wi-Fi on airplanes will have seemed inevitable. Aircell, the company behind Gogo, the Wi-Fi service for most domestic flights, recently announced it is working on a satellite system that will enable international service by 2015.